Sole-leveling machine



(No Mmm.)r 2 snens-sneet 1.

E. C.'JUDD.

. SULB LBVELING MACHINE. l No. 543,385. y Patented July 23, 1895.

(No Model.) sheets-shear 2. E. C. JUDD. lS( ).1'3 LEVELlNG MACHINE.

Patented July 23, 1895.

Vph/ENTR;

WITNESSES:

UNITED STATES PATENT OFFICE.

EDWARD C. J UDD, OF BOSTON,` MASSACHUSETTS.

SOLE-LEVELING MACHINE.

SPECIFICATION forming part of Letters Patent No. 543,385,dated July 23, 1895.

Applicata nea october 9, 189s.

To all whom t may concern:

Be it known that I, EDWARD C. JUDD, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Sole-Leveling Machines, of which the following is a specification.

This invention relates to sole-leveling machines employed in the manufacture of boots and shoes, and the principal object of the invention is to provide means for more effectually treating the marginal portions of the' face of the sole than heretofore.

Another object is to provide an improved construction of jack for supporting the work and permitting the desired movements of the same.

To the vabove ends the invention consists in certain novel features of construction and combinations of parts, which will hereinafter be described and claimed.

Figure l shows a part side elevation and part sectional view of av machine constructed in accordance with the invention. Fig. 2 shows a top plan of the leveling-rolls, the supports for one of the side rolls appearing in section. Fig. 8 shows a section on line 3 3 of Fig. 1. Fig. 4 shows a section on line 4 4 of Fig. 2. Fig. 5 shows a similar view illustrating a modified construction. Fig. 6 shows another modification. Fig. 7 shows a detail sectional View of one of the standards which support the last, illustrative of means for adjusting the position of said standard longitudinally of the slide which supports it.

The same letters and numerals of reference indicate the same parts in all the figures.

In the drawings, the letter @designates the stationary supporting-frame of the machine, in which is pivotally mounted a yoke h, having slideways b", which receive a slide b2, carrying standards b3 h4 for the last 2. to rest upon, the standard b3 being adjustable longitudinally of the slide by reason of the following construction: The slide is provided with a longitudinal slot h5, and a rotatable rod h6 is mounted in the standard b3 and provided with an eccentric 57, engaged by a strap bs, which is formed integral with a bolt b9, engaging the slot'bs, and having a hea'd Z910 below the said slot.

The standard may be moved along the slide yoke is oscillated on its pivot.

Serial No. 487,619. (No model.)

and fastened 'at different adjustmentsA by turning the rod b, which is provided with a handle4 Z911. By thisv means adjustment for lasts of dierent lengths is secured.

The standards b3 and b4 are suitably constructed to receive and hold the last.

The parts above enumerated constitute the jack, and movements of the pivoted yoke and slide are brought about through means to bel presently described.

The letter c designates the main drivingshaft, which is connected by bevel-gears with a vertical shaft c', carrying a worm c2, which meshes with a gear o3 on a counter-shaft c4. This counter-shaft carries a crank which is connected by a rod or pitmanl c5 with an arm c6 on the yoke b. Through this means the The countershaft c4 is connected through bevel-gears d with a shaft d', which carries at its front end a disk d2, having a cam-groove cl3 in its face and engaged by a roller d4 on a lever d6, pivoted at its lower end to a bearing on the yoke b and engaging the slide h2 at its upper end. Through these means the said slide is reciprocated in the ways b.

The chief leveling-roll e, whose levelin g-surface is preferably concave, as shown in Fig. 2, is supported in a pivoted carrier having arms e', which are pivoted to a verticallyswinging frame .composed of arms e2, whose rear ends are pivoted to the frame a. This leveling-roll receives an oscillatory motion through the following connections with the main driving-shaft c: An eccentric e3 is affixed to said shaft and coacts with a pitman e4, which is jointed to one arm of a bell-crank lever e5, whose other arm is connected by a rod e6 with a bar e7, connecting the arms e and forming therewith a carrier for the roll e. In addition to supporting the chief leveling-roll e the arms e2 also support auxiliary rolls f, of which there are here shown two pairs, located on opposite sides of the roll e. These auxiliary rolls, besides in assisting in leveling the sole, are designed to act on the marginal portions of the face of the' sole and more effectively close the thread-channel than would otherwise be done, and in furtherance of this design are of substantially frusto-conical form (but this form of roll is not essential) with iianged bases.l The iianges by bearing on the edges of the sole constitute an important factor in closing the threadchannel. Each auxiliary roll is supportedin the following manner: A standard f', fastened to the arm e2, carries in asliding spring fpressed box g at its lower ond a stud f2, which projects inwardly and forms a bearing for the roll, permitting endwise movement of the same. A springfs, mounted on the stud f2, acts against the roll and resists movement of the same toward the standard f', thereby producing a constant endwise pressure of the roll on the sole. The amount of endwise play of the roll can be regulated by means of a nut t', screwed on the end of the stud. This endwise pressure causes a wiping action on the face and edge of the sole, which is very effective in closing down the lip turned up to form the thread-channel. At the same time the roll has ayielding downward pressure on the sole imparted to it by the spring which acts on the box g.

The roll-supporting stud may be adjusted to different angular positions through the following means: The portion of the standard f which engages the arm e2 is formed with a convex face f4, which engages a concaved seat f5 in th-e said arm, and a bolt f6 passesthrough the arm, its head bearing against the inner side ofthe arm and through a slot inthe standard f and carries a nut f7, bearing against a washer f8, which has a convex inner side in engagement with the standard. After loosening the nut]7 the standard can be turned to bring the stud to the desired angular position and fastened by tightening the nut.

A modified construction for securing angular adjustment of the roll-supporting stud is illustrated in Fig. 5. The standard g is adjustably secured to the arm e2 by a bolt g8 passing through a slot gg, and is formed near its lower end with a concavo-convex web g2.

The roll-supporting stud g3 is formed with an enlargement g4, having a concave side, which engages the convex side of the web g2, and said stud has an end which extends through an enlarged opening inthe web and is screw-threaded to receive a nut g5, a Washer gf being interposed between said nut and the web and formed with a convex side to fit the concavity of the web. It will be observed that after loosening the said nut the stud can be adjusted to any angle desired'and fixed by tightening the nut.

Fig. 6 illustrates another way of supporting the auxiliary rolls. A cross-bar h extends between the arms e2, and is provided in opposite sides of the center With two longitudinal slots h', which are engaged by boxes h2, actuated toward the middle of the bar by springs place a downward pressure in the rolls, while the springs h3 press the rolls toward each other.

Besides their functionof acting on the marginal portions of the sole the auxiliary rolls are useful in preventing the chief roll e from dropping off either end of the last, for while the said chief roll is working on the end portion of the sole a pair ofauxiliary rolls bear on the sole behind the chief roll.

It is evident the construction here shown may be varied without departing from the spirit and scope of the invention, and that the invention is not/therefore limited in this respect; but a single pair of side rolls could be used, and when two pairs are employed they could be located both on the same side of the chief roll, and not necessarily on opposite sides, as shown.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. A sole-leveling machine, combining in its structure a jack, a vertically swinging frame or holder, a roll-carrier on the frame or holder, a leveling roll mounted on the carrier, and side rolls mountedon the frame or holder independent of the said roll-carrier.

2. A sole-leveling machine, combining in its structure a jack, a swinging frame or holder, a movable roll-carrier mounted on the frame or holder, a leveling-roll arranged on the said carrier, and yielding side rolls mounted in pairs on the swinging frame and the rolls of each pair having their axes substantially coincident.

3. A sole-leveling machine, comprising in its construction a jack, a vertically swinging frame or holder above said jack, a levelingroll supported by the said frame or holder, and one or more pairs of side-rolls connected with the frame or holder o'n one side of the said leveling-roll, the axes of the two rolls of a pair being substantially in line with each'k other.

4. The combination of a jack, a verticallyswinging frame or holder above said jack, a leveling-roll supported by said holder and side-rolls supported by said holder in position to bear on the marginal portions of the sole face, the said side-rolls being yieldingly supported whereby they are adapted to move endwise and follow the curves of the sole edge, as set forth.

5. The combination of a jack, a verticallyswinging frame or holder above the jack, a leveling-rol] mounted in a carrier which is pivotally connected with said holder, mechanism for oscillating said carrier to move the roll back and forth on the sole, and side-rolls supported by said holder as set forth.

6. The combination of a jack, a verticallyswinging frame or holder above the jack, a leveling-roll supported by said holder, studs or bearings secured to the holder, independently-movable flanged side-rollsl adapted to slide on said studs, and springs whereby said IOO IZO

rolls are yieldinglyy pressed inwardly, their flanges bearing against the edge of the s ole as set forth.

7. The combination of a jack, a verticallyswinging fraine or holder above the jack, a leveling-roll supported by said holder, vertically adjustable standards carried by the holder and auxiliary side-rolls carried by said standards.

8. The combination of a jack, a verticallyswinging frame or holder above the jack, a leveling-roll supported by said holder, standards adjustably secured to the ho1der,'studs or bearings secured to said standards and adjustable therewith so that the studs may stand at different angles, and independently-mov- EDWARD C. JUDD.

Witn esses:

A. D. HARRISON, F. PARKER DAVIS. 

